Home / 10,979.88-16,453.48-5,769.96

Finding the Fourth Proportional to 10,979.88, 16,453.48 and 5,769.96

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Solution

The fourth proportional to 10,979.88, 16,453.48 and 5,769.96 is: 8,646.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,979.88 : 16,453.48 = 5,769.96 : x
  2. Step 2: Convert to fraction form
    10,979.88/16,453.48 = 5,769.96/x
  3. Step 3: Cross multiply
    10,979.88x = 16,453.48 × 5,769.96
  4. Step 4: Simplify right side
    10,979.88x = 94,935,921.46
  5. Step 5: Solve for x
    x = 94,935,921.46/10,979.88
  6. Step 6: Final answer
    x = 8,646.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.